A law stating that the intensity of an effect such as illumination or gravitational force changes in inverse proportion to the square of the distance from the source.
- Hooke replied to Newton that his own theory involved an inverse square law for gravitational attraction.
- Electromagnetism has a classical inverse square law (like Newton's classical law of gravitational attraction), and infinite range.
- The law that Newton discovered was the inverse square law of gravitation - a simple law, but one with great mathematical beauty.
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